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4 Answers

Class E Enroute Domestic Areas

Asked by: 9647 views Airspace, General Aviation, Private Pilot, Student Pilot

Has anyone ever had to consider "Enroute Domestic Areas" in their flight planning or in any other way? I have not. Not knowingly anyway but recently I heard it referred to as "...Class E airspace outside of the magenta vignette surrounding an airport." Is that correct?

Also, the definition of Enroute Domestic Areas baffles me. I've never come across it before, and the way it's written is beyond my comprehension! PLEASE HELP!

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4 Answers



  1. John D Collins on Jan 03, 2015

    Normally E airspace starts at 700 or 1200 AGL. In some areas, it starts at a specified elevation such as 9500 MSL. See an example surrounding Ruth California (T42) at 9500 MSL 40 12 N/ 123 15W. It is not associated with an airport, I just specified one so you can find the example of class E airspace that does not start at 700/1200 AGL.

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  2. Mark Kolber on Jan 04, 2015

    I’ll try to answer the “Has anyone ever had to consider” part of the question.

    To add to John’s explanation of what they are, they are simply areas where the floor of Class E is something other than the standard 700 or 1200 AGL. Although they typically exists at higher elevations, I think their overall purpose is to “smooth out” the floor of Class E in places where the terrain elevation changes a lot – up and down- within a small area.

    Assuming you know one when you are looking at it, there is absolutely no difference in considering this Class E from any other Class E airspace. No special communication or equipment requirements and VFR visibility and cloud clearance requirements are the same.

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  3. Gary S. on Jan 04, 2015

    I found Ruth. As I read it, it looks like the Class E airspace surrounding Ruth (within the zippered area) is between 18,000 msl to 9500 msl.

    Outside this zippered area, Class E will be from 18,000 msl to 1,200′ AGL. Is this the way you interpret it?

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  4. John D Collins on Jan 04, 2015

    Yes

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